// 空气数据接口
export interface AirData {
  data_id: number
  site_id: number
  pm25: number
  pm10: number
  temperature: number
  humidity: number
  formaldehyde: number
  recorded_at: string
}

// API 响应接口
export interface ApiResponse<T> {
  code: number
  message: string
  data: T
} 